Characterization of small radiophotoluminescence dosemeter in terms of (0.07) for extremity dose monitoring of medical personnel

医療従事者の末端部被ばくモニタリングに向けた小型ガラス線量計の(0.07)に対する特性評価

古渡 意彦*; 吉富 寛  ; 永元 啓介*; 中上 晃一*; 盛武 敬*; 欅田 尚樹*

Kowatari, Munehiko*; Yoshitomi, Hiroshi; Nagamoto, Keisuke*; Nakagami, Koichi*; Moritake, Takashi*; Kunugita, Naoki*

An additional individual monitoring using ring badge must be made, when inhomogenous exposure around radiation workers' extremity were critical for radiation workers. The RPLD, the GD-302M and the GD-352M have a dimension of 13.0 mm in length and 2.8 mm in diameter for outer casing and will also be a promising candidate for individual monitoring of the extremities of medical personnel. We investigated the applicability of this commercially available RPLDs to extremity dose monitoring by performing a characterization of the dosemeters by experiments and Monte Carlo (MC) calculations. The results shows that the energy response of GD-352M fully meets the IEC requirement between 20 keV and 200 keV. We also found that no significant angular dependence of responses for each model was observed and orientation of irradiation hardly affected the response. In conclusion, we demonstrated the applicability of a small RPLD to the extremity monitoring in terms of (0.07) for medical personnel.